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Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?
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Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

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User Jsmarkus
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2 Answers

3 votes
b. the presence of oxygen-bound hemoglobin makes it bright red
answered
User Abhishek Sachan
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5 votes
There is more oxygen near the lungs, because fresh oxygen goes into the lungs.
answered
User Saikiran Yerram
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